-al a-a a-b a-i aaa aab aad aae aai aal aap ab- aba abb abd abe abi abl abp ad- ada adb add ade adi adl adp aea aeb aed aee aei ael aep ai- aia aib aid aie aii ail aip al- ala alb ald ale ali all alp ap- apa apb apd ape api apl app b-p baa bab bad bae bai bal bap bba bbb bbd bbe bbi bbl bbp bda bdb bdd bde bdi bdl bdp be- bea beb bed bee bei bel bep bi- bia bib bid bie bii bil bip bla blb bld ble bli bll blp bpa bpb bpd bpe bpi bpl bpp daa dab dad dae dai dal dap dba dbb dbd dbe dbi dbl dbp dda ddb ddd dde ddi ddl ddp de- dea deb ded dee dei del dep di- dia dib did die dii dil dip dl- dla dlb dld dle dli dll dlp dpa dpb dpd dpe dpi dpl dpp eaa eab ead eae eai eal eap eba ebb ebd ebe ebi ebl ebp ed- eda edb edd ede edi edl edp eea eeb eed eee eel eep eia eib eid eie eii eil eip ela elb eld ele eli ell elp ep- epa epb epd epe epi epl epp i-d ia- iaa iab iad iae iai ial iap iba ibb ibd ibe ibi ibl ibp ida idb idd ide idi idl idp ie- iea ied iee iei iel iep iia iib iid iie iii iil iip il- ila ilb ild ile ili ill ilp ipa ipb ipd ipe ipi ipl ipp l-p la- laa lab lad lae lai lal lap lba lbb lbd lbe lbi lbl lbp lda ldb ldd lde ldi ldl ldp lea leb led lee lei lel lep lia lib lid lie lii lil lip lla llb lld lle lli lll llp lpa lpb lpd lpe lpi lpl lpp p-p paa pab pad pae pai pal pap pba pbb pbd pbe pbi pbl pbp pda pdb pdd pde pdi pdl pdp pea peb ped pee pei pel pep pia pib pid pie pii pil pip pla plb pld ple pli pll plp ppa ppb ppd ppe ppi ppl ppp